John bellinger



(N0 Model.)

J. DELLINGER. VENTILATOR GAP.

No. 445,522. Patented Jan. 27, 1891.

Witnesses. W /6 s UNITED STATES PATENT QFFICE;

JOHN DELLINGER, OF BUFFALO, NEIV YORK, ASSIGNOR TO HARRY O. AIIBRO, OFSAME PLACE.

VENTILATOR-CAP.

SPECIFICATION forming part of Letters Patent No. 445,522, dated January27, 1891.

Application filed December 9, 1889- Serial No. 333,053, (No model.)

To all whom it may concern:

Be it known that I, J GEN DELLINGER, a citizen of the United States,residing in Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Ventilator-Caps, ofwhich the following is a specification.

My invention consists in certain improvements in ventilator-caps,whereby the ventixo lator is rendered very much more simple in itsconstruction and the cap more easily put in place or attached to a pipethan such caps as are in ordinary use, all of which will be fully andclearly hereinafter described and claimed, reference being had to theaccompanying drawings, in which- Figure 1 is a detached sectional ele'ation of the ventilator through line a b, Fig. 4:, looking toward thelowerhalf. Fig. 2 is aside elevation of the ventilator attached to apiece of pipe. Fig. 3 is a similar view showing the pipe in section, andFig. 4 is an inside plan view of the ventilator-cap.

Referring to said drawings, 1 represents the 2 5 ventilator-cap. I haveshown it in a semispherical form; but a conical or any other suitableshape may be used. This cap is preferably made of cast-iron having threeor more lugs 2 on the inside cast in one piece with it. In each lug 2 1sa notch or offset 3, therebyleaving a projecting shoulder on each lug 2to slip over the edge of a piece of pipe when the ventilator is inplace, as shown in Fig. 1. This construction affords a suitable bearingto rest upon the top of the pipe and the shoulders on the lugs to keepit in a central position, substantially as shown by the dotted lines 4in Fig. 4L. Between the lugs, or at some convenient point, are rivetedby rivets 5 the strap-iron pieces 6. I have shown three in the drawings,but more or less may be used, if desired. When the cap is attached to apipe, these strap-irons 6 are slipped down inside of the pipe 7 and thenturned up over the lower'edge, as shown at S in Figs. l and The objectof this invention is to produce a simple ventilator-cap adapted foreasily and readily being attached to a pipe to be connected with asewer-pipe in the usual way, The strap-iron connecting-pieces 6 can bemade of any desired length, and if too long for the pipe can be easilycut the proper length to fit, being of light strap-iron, and thenattached by bending the ends over the lower end of the pipe, as beforementioned. The lower end of the pipe, having, the top thus secured, isplaced in the well-known opening of an ordinary sewer-pipe, its bottomresting on the inwardly-projecting shoulder. The opening between thesewer-pipe opening and around the pipe is then filled up by cement,thereby forming a perfectly-tight joint in the usual and well-knownmanner.

I claim as my invention- In a ventilator-cap, the combination of the cap1, interior lugs 2, each having a notch or offset 3, strap-ironconnecting-pieces 6, and the pipe 7, the connecting-pieces 6 connectingwith the cap and with the pipe by passing down through it andterminating in the hook-shaped portion 8, which turns up over the loweredge of the pipe, substantially as described.

JOHN DELLINGER.

Witnesses:

CLARENCE F. GREGORY, JAMES SANesTnR.

